@book { ZentraleProblemebeiderErforschungderlterenRunen, title = "Zentrale Probleme bei der Erforschung der älteren Runen", subtitle = "Akten einer internationalen Tagung an der Norwegischen Akademie der Wissenschaften", author = "John Ole {Askedal} and Harald {Bjorvand} and James E. {Knirk} and Otto Erlend {Nordgreen}", year = "2010", publisher = "Peter Lang Verlag", address = "Berlin, Germany", url = "https://www.peterlang.com/document/1135520" }